Dual Brite® Motion Sensor Light Control is a motion-sensing security light with Patented DualBrite 2-level lighting technology. It has up to 100 feet detection range with adjustable detection sensitivity with auto Dusk-to-Dawn feature. When motion is sensed, the Light Control will turn on the fixture for the amount of time you set (1, 5, or 10 minutes) then automatically turn the light off. The built in photocell keeps the light off during the day when it is not needed then allows the motion sensor to take over at night. Manual mode allows the Light Control to be turned on and off with a light switch if desired. The patented DualBrite Timer will cause the light to come on at half brightness for a selected amount of time (Off, 3 hours, 5 hours, or until dawn) after dusk. Selecting Off disables this feature. If motion is sensed while in DualBrite mode, the light will turn on to full bright for the set on-time, then return to dim mode.FEATURES : • Turns on lighting when motion is detected. • Automatically turns lighting off. • DualBrite® Timer. • Photocell keeps the lighting off during daylight hours. • LED indicates motion was sensed (day or night).